12876640 has 48 divisors (see below), whose sum is σ = 34769952. Its totient is φ = 4414464.

The previous prime is 12876613. The next prime is 12876641. The reversal of 12876640 is 4667821.

It is a junction number, because it is equal to n+sod(n) for n = 12876596 and 12876605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12876641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4629 + ... + 6868.

It is an arithmetic number, because the mean of its divisors is an integer number (724374).

Almost surely, 2^12876640 is an apocalyptic number.

12876640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12876640 is an abundant number, since it is smaller than the sum of its proper divisors (21893312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12876640 is a wasteful number, since it uses less digits than its factorization.

12876640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11519 (or 11511 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 12876640 is about 3588.4035447536. The cubic root of 12876640 is about 234.3873585187.

The spelling of 12876640 in words is "twelve million, eight hundred seventy-six thousand, six hundred forty".